CN215843672U - Rotary atomizing disc with high atomizing structure - Google Patents

Abstract

The utility model relates to a rotary atomizing disk with a high atomizing structure, which is a detachable nozzle type atomizing disk and comprises a base, a nozzle buckle, a top cover and a countersunk head bolt, wherein the base is provided with the nozzle, the nozzle is connected with the base through the nozzle buckle, the top cover is fixedly arranged above the base through the countersunk head bolt, the center position inside the base on the top cover is provided with a shaft hub fixedly connected with the base, and a gap formed by the shaft hub and the center circle of the top cover is set as a medium inlet.

Description

Rotary atomizing disc with high atomizing structure

Technical Field

The utility model relates to the technical field of atomization, in particular to a rotary atomizing disk with a high-atomization structure.

Background

The method adopts a rotary atomization evaporation mode to evaporate and dry liquid, and is a common drying and granulating method. The main method of rotary atomization is that when liquid is fed to an atomizing disk rotating at high speed, the liquid is stretched into a film or drawn into filaments (depending on the speed of rotation and the amount of slurry) due to centrifugal force, breaking up and dispersing into droplets at the edge of the atomizing disk. The size of the droplets depends on the rotation speed and liquid throughput. The atomizer can ensure that the particle size distribution of atomized droplets is not changed significantly when the liquid flow is not changed greatly. The atomized liquid and the high-temperature gas are fully and uniformly mixed, so that the fog drops are evaporated, and salt and suspended matters in the liquid are separated out. The evaporation method is widely used in various industries: such as food, medicine, chemical industry, waste water treatment and other industries. The atomization effect of rotary atomization depends in large part on the structure of the atomizing disk. Meanwhile, different media and different processes have different atomization effects on rotary atomization.

The structure of the prior common atomizing disk generates droplets with the Shore average particle size of about 90-110 μm in practical engineering use. The defects are as follows: the atomization particle size is larger, so that the atomization radius of the atomizer is directly increased, and the floor area of matched equipment is enlarged; the atomized particle size is large, so that the time required for evaporating the atomized particles is directly prolonged, and the evaporation space required by matched evaporation equipment is enlarged;

in view of the above-mentioned drawbacks in the prior art, it is necessary to develop a rotary atomizing disk that can produce a lower atomized particle size by solving the drawbacks in the prior art.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems in the prior art, the utility model provides a rotary atomizing disk with a high atomizing structure, which adopts a detachable nozzle type atomizing disk structure, adopts an inverted cone-shaped flow field space inside, reduces the flow resistance, simultaneously reduces the accumulated liquid inside the atomizing disk, ensures that the pressure distribution of the flow field of the atomizing disk is uniform, avoids local backflow dead angles, and reduces the erosion of a medium to the atomizing disk; meanwhile, the atomizing disk nozzle adopts a detachable structure, so that the atomizing disk nozzle is convenient to replace, and the atomizing effect is ensured.

The technical problem solved by the utility model can be realized by adopting the following technical scheme:

the utility model provides a rotatory atomizing disk of high atomizing structure, rotatory atomizing disk sets up to dismantling nozzle formula atomizing disk, atomizing disk includes base, nozzle buckle, top cap, countersunk head bolt, be provided with the nozzle on the base, be connected through the nozzle buckle between nozzle and the base, there is the top cap base top through countersunk head bolt fixed mounting, on the top cap the inside central point of base puts and is provided with the shaft hub with base fixed connection, the clearance that shaft hub and top cap center circle formed sets up to medium inlet.

Further, a sealing O-shaped ring is used for sealing between the base and the top cover.

Furthermore, the nozzle is one or two or more of a ceramic nozzle, a ceramic-metal-lined nozzle, a silicon carbide-lined metal nozzle and a tungsten carbide-lined metal nozzle, and the cone angle at the inlet of the nozzle is set to be 40-60 degrees.

Further, the number of the nozzles is 4-12.

Furthermore, the upper surface of the base and the lower surface of the top cover form inverted cones, and the inverted cones form inverted cone flow fields in combination.

Compared with the prior art, the utility model has the beneficial effects that:

1. the nozzle and the atomizing disk main body are of detachable structures and are fixed by the buckles, so that the nozzle is convenient to detach and replace, the cone angle at the inlet of the nozzle is 40-60 degrees, when the cone angle at the inlet of the nozzle is increased, the treatment capacity of a single atomizing disk nozzle can be improved, the disturbance capacity of a nozzle flow channel can be improved, and the atomizing effect can be improved; but thus increase the flow resistance locally at the nozzle;

2. when the rotating speed of the rotary atomizing disk is low and tends to 12000rpm, the lower limit value of the design taper angle at the inlet of the matched rotary atomizing disk nozzle is about 40 degrees; when the rotating speed is higher and tends to 16000rpm, the lower limit value of the designed cone angle at the inlet of the matched rotary atomizing disk nozzle tends to 60 DEG

3. The number of the nozzles designed on the rotary atomizing disk is 4-12, and the nozzles can be adjusted, and when the actual treatment capacity of the atomizing disk is less than the designed treatment capacity, a plurality of nozzles can be replaced by plugs to meet the atomizing requirement;

4. the upper surface of the base and the lower surface of the top cover of the atomizing disc are in the shape of inverted cones, and the inverted cones are combined to form an inverted cone flow field, so that the flow resistance is reduced, the accumulated liquid in the atomizing disc is reduced, the pressure distribution of the flow field of the atomizing disc is uniform, the local backflow dead angle is avoided, and the erosion of a medium to the atomizing disc is reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic illustration of an explosive structure of the present invention;

fig. 3 is a schematic view of the internal structure of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Example 1:

as shown in figures 1-3, a rotary atomizing disk with a high atomizing structure adopts a detachable nozzle type atomizing disk structure, the rotary atomizing disk is a disk-shaped atomizing disk with the diameter of 150mm-350mm, the rotating speed of the rotary atomizing disk is set to be 12000rpm-16000rpm, the atomizing amount is less than 15t/h, and the atomizing particle size is 25-50 um.

The rotary atomizing disc comprises a base 105, a nozzle 103, a nozzle buckle 104, a top cover 101 and a countersunk head bolt 102, wherein the base and the top cover are made of one or two or more of iron-based materials, nickel-based materials, aluminum-based materials and copper-based materials. The base and the top cover are subjected to one or two or more than two surface treatments of tungsten carbide lining, silicon carbide lining and acid cleaning passivation. The round hole has been seted up to the lateral wall of base, the downthehole fixed mounting of round has the nozzle, through nozzle buckle fixed connection between the round hole of nozzle and base, there is the top cap base top through countersunk head bolt fixed mounting, on the top cap the inside central point of base puts and is provided with the shaft hub with base fixed connection, the clearance that shaft hub 201 and top cap center circle formed sets up to medium entry 202, and the nozzle sets up to the medium export.

Further, the base and the top cover are sealed by a sealing O-ring 106.

Furthermore, the nozzle is one or two or more than two of a ceramic nozzle, a ceramic-lined metal nozzle, a silicon carbide-lined metal nozzle and a tungsten carbide-lined metal nozzle, the inside of the nozzle is designed by adopting a Laval tube principle structure, the cone angle of the inlet of the nozzle is set to be 40-60 degrees, when the cone angle of the inlet of the nozzle is increased, the treatment capacity of a single atomizing disk nozzle can be improved, the disturbance capacity of a nozzle flow channel can be improved, the atomizing effect can be improved, and the local circulation resistance of the nozzle can be increased. When the design rotating speed is low and tends to 12000rpm, the lower limit value of the design taper angle at the inlet of the matched rotary atomizing disk nozzle tends to 40 degrees, and when the design rotating speed is high and tends to 16000rpm, the lower limit value of the design taper angle at the inlet of the matched rotary atomizing disk nozzle tends to 60 degrees.

Further, the nozzle is provided with a nozzle inlet 203 and a nozzle outlet 204, the nozzle outlet is provided with a nozzle outlet taper angle, and the angle of the nozzle outlet taper angle is set to be 0.25-0.35 × nozzle inlet taper angle, so that when the angle of the nozzle outlet taper angle is reduced, the disturbance capability of a nozzle flow channel is improved, the atomization effect is improved, the local flow resistance of the nozzle is increased, and the processing capability of a single nozzle is inhibited. The number of the nozzles is 4-12, and when the actual treatment capacity of the atomizing disk is less than the designed treatment capacity, the nozzles can be replaced by plugs to meet the atomizing requirement.

Furthermore, the upper surface of the base and the lower surface of the top cover are in an inverted cone shape, and an inverted cone flow field is formed by combination, so that the flow resistance is reduced, the accumulated liquid in the atomizing disc is reduced, the pressure distribution of the flow field of the atomizing disc is uniform, the local backflow dead angle is avoided, and the erosion of a medium to the atomizing disc is reduced.

While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the utility model is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (5)

1. The utility model provides a rotatory atomizing disk of high atomizing structure which characterized in that: rotatory atomizing disk sets up to dismantling nozzle formula atomizing disk, atomizing disk includes base, nozzle buckle, top cap, countersunk head bolt, be provided with the nozzle on the base, be connected through the nozzle buckle between nozzle and the base, there is the top cap base top through countersunk head bolt fixed mounting, on the top cap the inside central point of base puts and is provided with the shaft hub with base fixed connection, the clearance that shaft hub and top cap center circle formed sets up to medium inlet.

2. The rotary atomizing disk with high atomizing structure according to claim 1, is characterized in that: and a sealing O-shaped ring is used for sealing between the base and the top cover.

3. The rotary atomizing disk with high atomizing structure according to claim 1, is characterized in that: the nozzle is one or two or more of a ceramic nozzle, a ceramic-lined metal nozzle, a silicon carbide-lined metal nozzle and a tungsten carbide-lined metal nozzle, and the cone angle at the inlet of the nozzle is set to be 40-60 degrees.

4. The rotary atomizing disk with high atomizing structure according to claim 1, is characterized in that: the number of the nozzles is 4-12.

5. The rotary atomizing disk with high atomizing structure according to claim 1, is characterized in that: the upper surface of the base and the lower surface of the top cover form inverted cones, and the inverted cones form inverted cone flow fields in combination.

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